Ключевые слова: auditorium, background, black, blackboard, blank, blue, board, chair, chalkboard, child, class, classroom, college, course, desk, education, empty, exam, floor, frame, green, highschool, indoors, inside, instruction, interior, knowledge, learn, lecture, lesson, light, nobody, office, parquet, rendering, room, row, school, seat, seminar, study, table, teach, training, university, wall, white, wooden,